CN106625992B - A kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold - Google Patents

A kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold Download PDF

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CN106625992B
CN106625992B CN201610905298.XA CN201610905298A CN106625992B CN 106625992 B CN106625992 B CN 106625992B CN 201610905298 A CN201610905298 A CN 201610905298A CN 106625992 B CN106625992 B CN 106625992B
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gypsum
gypsum mold
craftwork
prefabricated
mold
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CN106625992A (en
Inventor
张凯峰
袁延召
冯涛涛
罗作球
孟刚
赵世冉
任慧超
王敏
刘磊
耿飞
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China West Construction North Co Ltd
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China Construction Ready Mixed Concrete Xian Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/14Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/344Moulds, cores, or mandrels of special material, e.g. destructible materials from absorbent or liquid- or gas-permeable materials, e.g. plaster moulds in general
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346Manufacture of moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/38Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/388Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00939Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores

Abstract

The present invention proposes a kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, prepares gypsum mold first, and the quality proportioning of gypsum of reconciling is gypsum:Water:Gypsum reinforcing agent:Fiber=100:(33~38):(2.2~2.6):(0.8~1.2), and be segmented from below to up according to craftwork bumps state and pour gypsum, obtain gypsum mold;Then grease type releasing agent is smeared in gypsum mold, and gypsum mold merges using the merging of sealed plastic cloth at abutment joint, then pour decorative coagulation soil material;Gypsum mold is finally disassembled, obtained complicated architectural concrete craftwork is surface-treated, is cleaned.The present invention is simply ripe by this manufacture craft of gypsum, at low cost, the high material of shaping efficiency, by the way that the improvement of additive admixture etc. and processing step is added, so that gypsum mold is can be used for prefabricated to complicated common or polychromy concrete making technology product progress.

Description

A kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold
Technical field
The present invention relates to architectural concrete craftwork prefabricating technique field, the prefabricated complicated decoration of specially a kind of gypsum mold Concrete making technology product method for prefabricating.
Background technology
Currently, architectural concrete mold mainly uses the materials such as gypsum, silica gel.Wherein gypsum as rigid material, due to It has disposable, and intensity is crisp, and product form is simple, absorbs water the features such as high, can only make that form is simple, smaller simple of size Decorative concrete products.And for surface abnormal shape, there is complicated streamline and the complicated architectural concrete craftwork of concave-convex state, Due to considering its release problems, mainly use the flexible dies such as silica gel as the mold of complicated ornament at present, there are costs The problems such as height, processing is complicated.
In addition, gypsum mold can lead to colored colour fading, color when preparing polychromy concrete since its high water absorption is acted on Color the problems such as not being evenly distributed with.
Above-mentioned reason limits mold design of the gypsum mold in complicated polychromy concrete making technology product and uses.
Invention content
In order to solve the problems existing in the prior art, the present invention proposes a kind of prefabricated complicated decorative coagulation geotechnique of gypsum mold Skill product method for prefabricating, this manufacture craft of gypsum is simply ripe, at low cost, the high material of shaping efficiency are additional by being added The improvement of agent admixture etc. and processing step allows gypsum mold to carry out complicated polychromy concrete making technology product pre- System.
The technical scheme is that:
A kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, it is characterised in that:Including following Step:
Step 1:Prepare gypsum mold:
Step 1.1:According to following quality proportioning reconciliation gypsum:
Gypsum:Water:Gypsum reinforcing agent:Fiber=100:(33~38):(2.2~2.6):(0.8~1.2);
Step 1.2:Then the grease releasing agent on craftwork master mould divides from below to up according to craftwork bumps state Section pours the gypsum after step 1.1 reconciles, and obtains gypsum mold;Wherein, after the completion of hypomere gypsum pours, end face upper berth is being poured The plastic cloth sheared according to craftwork master mould profile is applied, the plastic cloth is two-sided to be coated with grease release agent;And in gypsum mold Extreme higher position pour hole for reserved two with time high position;
Step 1.3:After gypsum mold molding, 10~12h is conserved in dry environment;Wherein hardened in gypsum mold Gypsum mold is detached, and demoulded from craftwork master mould by section by the plastic cloth of isolation, then proceedes to conserve by Cheng Hou;
Step 2:Grease type releasing agent is smeared in gypsum mold, and gypsum mold merges at abutment joint using sealing modeling Expect that cloth merges;Then it is poured from the hole that pours of secondary high position, the material poured is decorative coagulation soil material, in a secondary high position Set pour hole pour it is full after, sealed with plastic cloth, then poured from the hole that pours of extreme higher position, pour and finish Afterwards, maintenance processing is carried out in the dry state;
Step 3:After maintenance for 24 hours, gypsum mold is disassembled, obtained complicated architectural concrete craftwork is carried out at surface Reason, cleaning.
Further preferred embodiment, the prefabricated complicated architectural concrete craftwork method for prefabricating of a kind of gypsum mold, It is characterized in that:Gypsum reinforcing agent uses q-3 reinforcing agents.
Further preferred embodiment, the prefabricated complicated architectural concrete craftwork method for prefabricating of a kind of gypsum mold, It is characterized in that:
In prefabricated common achromaticity architectural concrete craftwork, it is mixed according to following quality proportioning that material is poured in step 2 Conjunction obtains:Cement:Flyash:Miberal powder:Water:Full water curing agent=1000:(290~330):(160~190):(300~325): (15~19);Wherein cement uses low alkali cement.
Further preferred embodiment, the prefabricated complicated architectural concrete craftwork method for prefabricating of a kind of gypsum mold, It is characterized in that:
Material is poured in prefabricated polychromy concrete making technology product, in step 2 to be mixed to get according to following quality proportioning: Cement:Refer and synthesize material:Water:Additive:Pigment:Aggregate:Stone=(260~270):(120~125):(160~170):(9.2~ 9.8):(15.5~19.8):(979~992):(856~880);Wherein cement use low alkali cement, refer and synthesize material be flyash with And miberal powder, additive are mixed to get by full water curing agent and antifoaming agent;Aggregate is mixed to get by fine aggregate and coarse aggregate;
And in prefabricated polychromy concrete making technology product, solid state class releasing agent is smeared in gypsum mold, thickness is not low In 0.2cm.
Advantageous effect
Beneficial effects of the present invention are as follows:
1, the formula of gypsum is explored, by the gypsum of brittle material originally, by referring and synthesizing for fiber and other material, Make its material that there is certain toughness, can be used to make complicated architectural concrete craftwork mold, and pass through mold Intensity enhancing increases the access times in its later stage.
2, the exploration prepared according to gypsum mold, makes the process simplification of script molding, and by the use to releasing agent with And the use of plastic film cloth, the demoulding efficiency of the success rate and complicated die that make molding have great promotion.
3, common and polychromy concrete making technology product are directed to, are directed to the molding of gypsum mold respectively to architectural concrete It influences, it is proposed that different pours material mixture ratio.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.
Specific implementation mode
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to for explaining the present invention, and It is not considered as limiting the invention.
At low cost the purpose of the present invention is this manufacture craft of gypsum is simply ripe, the high material of shaping efficiency passes through The improvement of additive admixture etc. and processing step is added, gypsum mold is made to can be used for complicated common or polychromy Concrete making technology product carry out prefabricated.
Basic step is:
Step 1:Prepare gypsum mold.Have since its surface is special-shaped for complicated architectural concrete craftwork Complicated streamline and bumps state cause its not too much be easy demoulding, therefore use molding mode be up and down separate type.
Step 1.1:According to following quality proportioning reconciliation gypsum:
Gypsum:Water:Gypsum reinforcing agent:Fiber=100:(33~38):(2.2~2.6):(0.8~1.2);
Ratio reconciliation gypsum in this way, intensity and toughness to gypsum have certain promotion.The preferred q-3 of gypsum reinforcing agent Reinforcing agent.
Step 1.2:Then the grease releasing agent on craftwork master mould divides from below to up according to craftwork bumps state Section pours the gypsum after step 1.1 reconciles, and obtains gypsum mold, since the bumps of handicraft surface cause when preventing from demoulding Demoulding failure;Wherein, after the completion of hypomere gypsum pours, the modeling sheared according to craftwork master mould profile is plated on pouring end face Expect cloth, then pour epimere gypsum again, slightly bubble removing is removed in vibrations after pouring.The plastic cloth is two-sided to be coated with grease demoulding Agent;And hole is poured with time high position for reserved two in the extreme higher position of gypsum mold;
Step 1.3:After gypsum mold molding, 10~12h is conserved in dry environment;Wherein hardened in gypsum mold Cheng Hou is detached gypsum mold by section, and demoulded from craftwork master mould by slightly shaking by the plastic cloth of isolation, It then proceedes to conserve.
Step 2:Since plaster mold has the characteristic of high water absorption, grease type releasing agent is smeared in gypsum mold, and And gypsum mold merges at abutment joint using the merging of sealed plastic cloth;Then it is poured, is poured from the hole that pours of secondary high position The material built can be colour, wood grain etc., in pouring for secondary high position according to required effect for decorative coagulation soil material After hole pours completely, sealed with plastic cloth, then poured from the hole that pours of extreme higher position, after pouring, in drying Maintenance processing is carried out under state.
Step 3:After maintenance for 24 hours, by slightly shaking dismantling gypsum mold, to obtained complicated decorative coagulation earth process Product are surface-treated, cleaning.
Based on above-mentioned principle, provides prepare common achromaticity complexity architectural concrete craftwork and colour again separately below The embodiment of miscellaneous architectural concrete craftwork:
Embodiment 1:Prepare common achromaticity complexity architectural concrete craftwork:
Step 1:Prepare gypsum mold.Have since its surface is special-shaped for complicated architectural concrete craftwork Complicated streamline and bumps state cause its not too much be easy demoulding, therefore use molding mode be up and down separate type.
Step 1.1:According to following quality proportioning reconciliation gypsum:
Gypsum:Water:Gypsum reinforcing agent:Fiber=100:33:2.2:0.8;
Ratio reconciliation gypsum in this way, intensity and toughness to gypsum have certain promotion.The preferred q-3 of gypsum reinforcing agent Reinforcing agent.
Step 1.2:Then the grease releasing agent on craftwork master mould divides from below to up according to craftwork bumps state Section pours the gypsum after step 1.1 reconciles, and obtains gypsum mold, since the bumps of handicraft surface cause when preventing from demoulding Demoulding failure;Wherein, after the completion of hypomere gypsum pours, the modeling sheared according to craftwork master mould profile is plated on pouring end face Expect cloth, then pour epimere gypsum again, slightly bubble removing is removed in vibrations after pouring.The plastic cloth is two-sided to be coated with grease demoulding Agent;And hole is poured with time high position for reserved two in the extreme higher position of gypsum mold;
Step 1.3:After gypsum mold molding, 10~12h is conserved in dry environment;Wherein hardened in gypsum mold Cheng Hou is detached gypsum mold by section, and demoulded from craftwork master mould by slightly shaking by the plastic cloth of isolation, It then proceedes to conserve.
Step 2:Since plaster mold has the characteristic of high water absorption, grease type releasing agent is smeared in gypsum mold, and And gypsum mold merges at abutment joint using the merging of sealed plastic cloth;Then it is poured from the hole that pours of secondary high position, Secondary high position pour hole pour it is full after, sealed, then poured from the hole that pours of extreme higher position, poured with plastic cloth After, maintenance processing is carried out in the dry state.
The characteristics of for gypsum mold, pours material and uses following special proportioning, just can guarantee the full of its details position It is full:Cement:Flyash:Miberal powder:Water:Full water curing agent=1000:(290~330):(160~190):(300~325):(15 ~19);The preferred cement of the present embodiment:Flyash:Miberal powder:Water:Full water curing agent=1000:300:180:320:18;Wherein water Mud uses low alkali cement, ensures that its dehydration will not cause late maintaining to meet water too fast and violate alkali, and uses water curing agent of satisfying It prevents concrete dehydration too fast and the crack in later stage generates.The full water curing agent is a kind of class coating material, is sprayed at coagulation Cure behind native surface, forms one layer of fine and close film, make concrete surface and air exclusion, moisture is greatly lowered from concrete Surface evaporation is lost.
Step 3:After maintenance for 24 hours, by slightly shaking dismantling gypsum mold, to obtained complicated decorative coagulation earth process Product are surface-treated, cleaning.
Embodiment 2:Prepare Complex Color architectural concrete craftwork:
Step 1:Prepare gypsum mold.Have since its surface is special-shaped for complicated architectural concrete craftwork Complicated streamline and bumps state cause its not too much be easy demoulding, therefore use molding mode be up and down separate type.
Step 1.1:According to following quality proportioning reconciliation gypsum:
Gypsum:Water:Gypsum reinforcing agent:Fiber=100:33:2.2:0.8;
Ratio reconciliation gypsum in this way, intensity and toughness to gypsum have certain promotion.The preferred q-3 of gypsum reinforcing agent Reinforcing agent.
Step 1.2:Then the grease releasing agent on craftwork master mould divides from below to up according to craftwork bumps state Section pours the gypsum after step 1.1 reconciles, and obtains gypsum mold, since the bumps of handicraft surface cause when preventing from demoulding Demoulding failure;Wherein, after the completion of hypomere gypsum pours, the modeling sheared according to craftwork master mould profile is plated on pouring end face Expect cloth, then pour epimere gypsum again, slightly bubble removing is removed in vibrations after pouring.The plastic cloth is two-sided to be coated with grease demoulding Agent;And hole is poured with time high position for reserved two in the extreme higher position of gypsum mold;
Step 1.3:After gypsum mold molding, 10~12h is conserved in dry environment;Wherein hardened in gypsum mold Cheng Hou is detached gypsum mold by section, and demoulded from craftwork master mould by slightly shaking by the plastic cloth of isolation, It then proceedes to conserve.
Step 2:Since plaster mold has the characteristic of high water absorption, grease type releasing agent is smeared in gypsum mold, and And gypsum mold merges at abutment joint using the merging of sealed plastic cloth;Then it is poured from the hole that pours of secondary high position, Secondary high position pour hole pour it is full after, sealed, then poured from the hole that pours of extreme higher position, poured with plastic cloth After, maintenance processing is carried out in the dry state.
Architectural concrete uses color concrete, the promotion of the making to architectural concrete, architectural concrete quality to have pole Big raising, but gypsum mold is used, since its high water absorption acts on, colored colour fading is may result in, color is not uniformly distributed, influences The quality of the color concrete to complete, it is therefore desirable to avoid such situation from sending out using special process in common technique It is raw.
In prefabricated polychromy concrete making technology product, pours material and be mixed to get according to following quality proportioning:Cement:Ginseng Close material:Water:Additive:Pigment:Aggregate:Stone=(260~270):(120~125):(160~170):(9.2~9.8): (15.5~19.8):(979~992):(856~880);Cement is used in the present embodiment:Refer and synthesize material:Water:Additive:Pigment: Aggregate:Stone=262:120:160:9.2:18:979:860.Wherein cement uses white cement, and it is flyash and mine to refer and synthesize material Powder, additive are mixed to get by full water curing agent and antifoaming agent;Aggregate is mixed to get by fine aggregate and coarse aggregate;
Relative to general decor concrete, in order to keep the colored of its color concrete will not be since the high water absorption of gypsum is made It is uneven at the color distribution on surface, in prefabricated polychromy concrete making technology product, it is de- that solid state class is smeared in gypsum mold Mould agent (such as vaseline), thickness are not less than 0.2cm.And additive is mixed to get by full water curing agent and antifoaming agent, is being made Vibration link is reduced afterwards, prevents from causing uneven color due to surface dehydration and vibrating flowing.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.

Claims (5)

1. a kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, it is characterised in that:Include the following steps:Step Rapid 1:Prepare gypsum mold:
Step 1.1:According to following quality proportioning reconciliation gypsum:
Gypsum:Water:Gypsum reinforcing agent:Fiber=100:(33~38):(2.2~2.6):(0.8~1.2);
Step 1.2:Then the grease releasing agent on craftwork master mould is segmented according to craftwork bumps state and pours from below to up The gypsum after step 1.1 reconciles is built, gypsum mold is obtained;Wherein, after the completion of hypomere gypsum pours, be plated on pouring end face by According to the plastic cloth of craftwork master mould profile shearing, the plastic cloth is two-sided to be coated with grease release agent;And gypsum mold most High position pours hole for reserved two with time high position;
Step 1.3:After gypsum mold molding, 10~12h is conserved in dry environment;It wherein hardens and completes in gypsum mold Afterwards, by the plastic cloth of isolation, gypsum mold is detached, and demoulded from craftwork master mould by section, then proceedes to conserve;
Step 2:Grease type releasing agent is smeared in gypsum mold, and gypsum mold merges at abutment joint using sealed plastic cloth Merge;Then it is poured from the hole that pours of secondary high position, the material poured is decorative coagulation soil material, in secondary high position Pour hole pour it is full after, sealed with plastic cloth, then poured from the hole that pours of extreme higher position, after pouring, Maintenance processing is carried out under drying regime;
Step 3:After maintenance for 24 hours, gypsum mold is disassembled, obtained complicated architectural concrete craftwork is surface-treated, Cleaning.
2. a kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, feature exist according to claim 1 In:Gypsum reinforcing agent uses q-3 reinforcing agents.
3. a kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, feature exist according to claim 1 In:
Material is poured in prefabricated common achromaticity architectural concrete craftwork, in step 2 to mix according to following quality proportioning It arrives:Cement:Flyash:Miberal powder:Water:Full water curing agent=1000:(290~330):(160~190):(300~325):(15 ~19);Wherein cement uses low alkali cement.
4. a kind of prefabricated complicated architectural concrete craftwork method for prefabricating of gypsum mold, feature exist according to claim 1 In:
Material is poured in prefabricated polychromy concrete making technology product, in step 2 to be mixed to get according to following quality proportioning:Water Mud:Refer and synthesize material:Water:Additive:Pigment:Aggregate:Stone=(260~270):(120~125):(160~170):(9.2~ 9.8):(15.5~19.8):(979~992):(856~880);Wherein cement use low alkali cement, refer and synthesize material be flyash with And miberal powder, additive are mixed to get by full water curing agent and antifoaming agent;Aggregate is mixed to get by fine aggregate and coarse aggregate;
And in prefabricated polychromy concrete making technology product, solid state class releasing agent is smeared in gypsum mold, thickness is not less than 0.2cm。
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CN110027353A (en) * 2019-03-15 2019-07-19 中民筑友新材有限公司 A kind of UHPC Decorative hanging board manufacture craft of chip-axe rectangular slab of stone effect
CN113414855A (en) * 2021-06-18 2021-09-21 上海建工建材科技集团股份有限公司 Method for manufacturing bare concrete prefabricated member and mold

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